A small, icy traveler from deep space has just threaded its way through the inner Solar System, offering a fleeting but profound reminder that our planetary neighborhood is not isolated. As ...

The formation of our solar system from a singular nebula raises an intriguing question: why did each planet develop with a ...

A small, recently discovered asteroid — or perhaps a comet — appears to have originated from outside the solar system, coming from somewhere else in our galaxy. If so, it would be the first ...

3I/ATLAS has now made its closest approach to the sun and Earth and is now heading back out toward the outer solar system. When you purchase through links on our site, we may earn an affiliate ...

And the earth was without form and void, and darkness was upon the face of the deep. Sometimes, if the night is dark and clear enough, you can look up and see the Milky Way in its arc across the sky.